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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-741) AbstractClientConnAdapter prone to concurrency issues
Date Sat, 02 Feb 2008 15:46:08 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12565078#action_12565078
] 

Oleg Kalnichevski commented on HTTPCLIENT-741:
----------------------------------------------

Another major problem is that AbstractClientConnAdapter attempts to release the connection
upon invocation of the abort method, which essentially requires the connection manager (or
at least its releaseConnection method) to be threading safe. We should not make such assumption.


Roland

I am going to go ahead and commit fixes for the above problems, given the fact you may be
off-line in the coming days / weeks. Please review the changes when you happen to have a chance.
If you find anything disagreeable, please let me know.

Oleg

> AbstractClientConnAdapter prone to concurrency issues
> -----------------------------------------------------
>
>                 Key: HTTPCLIENT-741
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-741
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>    Affects Versions: 4.0 Alpha 2
>            Reporter: Oleg Kalnichevski
>            Priority: Critical
>             Fix For: 4.0 Alpha 3
>
>
> AbstractClientConnAdapter is currently prone to all sorts of concurrency issues. (1)
Access to internal state is not properry synchronized making the class prone  to race conditions.
Presently none of the instance variables is even declared volatile. (2) AbstractClientConnAdapter
treats aborted connection as one in an illegal state, which is not quite right.
> Oleg

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